The development trend of motors shows that, regardless of type, motors are now incorporating more and more functions while emphasizing a compact design. More functions mean a greater amount of data, making it crucial to achieve the highest possible motor operating speed through absolutely reliable transmission connections. Different motors have different connector requirements.
First, let's look at servo motors. These are a type of motor that is becoming increasingly popular due to their ultra-high efficiency. In material handling systems and robotic applications, servo motors are gradually replacing hydraulic systems by integrating multiple controls. Circular and rectangular connectors are the most widely used in this type of motor. Hybrid connectors also have many applications, including micro motor connectors, heavy-duty connectors, and so on. It can be said that servo motors have corresponding connectors to assist them from the inside out.
Linear motors emphasize the need for low friction and high flexibility. The application of connectors in this type of motor is not complicated; the main requirement is to ensure reliability while achieving rapid connection.
Spindle motors are arguably the core of modern production systems, demanding high precision and reliability. These motors require precise drive control and reliable feedback in harsh industrial environments, making hybrid connector systems a preferred choice. Of course, both circular and rectangular connectors are essential for flexible connections in these applications.
When it comes to compact motor designs, stepper motors are undoubtedly a major force in low-cost compact designs. These cost-sensitive motors have a huge demand for standard plastic rectangular interconnect connectors, and the selection of connectors tends towards standardization. They prefer connections that adhere to standardized requirements over flexible connector combinations.
What has the trend of highly compatible modular motor connections brought about?
Modularization is a growing trend across connector systems, and motor connections are no exception. This is particularly evident in electrical connectors within the motor connector category, which are evolving into units composed of only a few single parts with a modular architecture. This makes them highly compatible and usable in many different combinations.
Quick-locking is one of the prerequisites for highly compatible modular connectors. Rotatable connector housings or connector shielding terminals can quickly and reliably connect modular connector systems together via quick-locking, which is extremely common in motor interface connections. Motor interface connectors require adjustment of power input and output, which is a significant test of connection system performance not only in industrial scenarios but also in any motor application. High vibration and high noise are also common challenges in industrial settings.
Modular design offers exceptional flexibility for motor connections that require power, signal, data, or a combination of these, saving significant space for miniaturized motor designs. Rotatable female terminals on the motor allow for more convenient and flexible cable connections, eliminating angle limitations. Meeting the compact design requirements of motors is certainly not a problem.
More importantly, there's performance. Building upon flexible connectivity, the challenge lies in reliably enabling drive motors, spindle drives, and servo motors to reach high speeds and easily handle start-stop operations. This requires connectors capable of continuously transmitting high voltage and high current. The voltage and current carrying capacity of the connection system depends entirely on the technical capabilities of each manufacturer; there's no unified standard for the electrical performance of either a single connection or a hybrid connection with custom shielding.
Furthermore, in the familiar field of M8/M12 circular connectors, the development trend of high conductivity and high bandwidth is self-evident.
What surprises do miniature motor connections bring?
There is also a new type of motor connector called a micro motor connector, which is a servo motor connector that combines the power supply and brake into one. This combined design has a more compact structure, achieves higher protection standards, and has stronger vibration and shock resistance.
These miniature motor connectors are primarily used in power supplies, brakes, and encoders. This hybrid connector reduces the overall cost of motor connections. Compared to standard plastic connectors, miniature motor connectors allow for quick installation and locking from the wire end to the motor socket. They achieve IP67 protection while saving significant space, making them suitable for motor applications in harsh environments.
The signal bits of micro motor connectors range from 2 to 16. For brakes, they are typically 2 bits; for power supplies, they have 6 bits; and for encoders or signal connectors, they have 9 bits. They offer unparalleled flexibility in the combination of power supplies, brakes, and encoders. For compact servo motors, this type of connector will bring even more surprises in the future.
summary
Increasingly compact motor designs place higher demands on various interface connections. The logic is simple: when internal data and various interfaces can be connected quickly, reliably, and efficiently, the motor's operating efficiency improves, and energy efficiency increases accordingly. Connectors play an increasingly important role in assisting motors to achieve high-performance motion control.
